Intuitionistic fuzzy sets and their variants
1. On the Prediction of Covid-19 Time Series: An Intuitionistic Fuzzy Logic Approach

Imo Eyo; Jeremiah Eyoh; Uduak Umoh

Articles in Press, Accepted Manuscript, Available Online from 27 March 2021

  This paper presents a time series analysis of a novel coronavirus, COVID-19, discovered in China in December, 2019 using intuitionistic fuzzy logic system with neural network learning capability. Fuzzy logic systems are known to be universal approximation tools that can estimate a nonlinear function ...  Read More

Type-2 fuzzy sets and their variants
2. Interval type-2 fuzzy logic system for remote vital signs monitoring and shock level prediction

Uduak Umoh; Samuel Udoh; Abdultaofeek Abayomi; Alimot Abdulzeez

Volume 2, Issue 1 , Winter 2021, , Pages 41-68

  Interval Type-2 Fuzzy Logic Systems (IT2 FLSs) have shown popularity, superiority, and more accuracy in performance in a number of applications in the last decade. This is due to its ability to cope with uncertainty and precisions adequately when compared with its type-1 counterpart. In this paper, an ...  Read More

Type-2 fuzzy sets and their variants
3. Using interval type-2 fuzzy logic to analyze Igbo emotion words

Uduak Umoh; Imo Eyoh; Etebong Isong; Anietie Ekong; Salvation Peter

Volume 1, Issue 3 , Summer 2020, , Pages 217-240

  Several attempts had been made to analyze emotion words in the fields of linguistics, psychology and sociology; with the advent of computers, the analyses of these words have taken a different dimension. Unfortunately, limited attempts have so far been made to using interval type-2 fuzzy logic (IT2FL) ...  Read More